<?hh // strict
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the "hack" directory of this source tree.
 *
 *
 */

function f(int $x): int {
  return 0;
}

function test(): void {
  $f = function($x) {
    return $x;
  };
  $f = function($x) use ($f) {
    return ($f)($x);
  };
  (fun(f))(0);
}
